Table Of Contents - York YDHF-39 Manual

SECTION
General Description ........................................................................................... 5
Nomenclature .................................................................................................... 5
SECTION
Service Guidelines ............................................................................................. 6
Cleaning & Checking Wearing Parts ................................................................. 6
Rigging The Compressor or Motor ................................................................... 7
Weights .............................................................................................................. 7
Torque Values .................................................................................................... 7
Special Tools ...................................................................................................... 8
Motor Removal & Replacement ...................................................................... 13
Shaft Seal ......................................................................................................... 14
Disassembly Of Rotor Support ....................................................................... 17
Removing The Impeller ................................................................................... 17
Removing Balance Piston Seal & Diffuser Plate ............................................. 20
Removing Front Low-Speed Bearings ............................................................ 22
Removing Front High-Speed Bearings ............................................................ 22
Removing Bearing Housing & Gears .............................................................. 24
Rear Low-Speed Bearing ................................................................................. 24
Rear High-Speed Bearing Components ........................................................... 26
Installing Gears ................................................................................................ 30
Installing Bearing Housing ............................................................................... 30
Installing Front High-Speed Bearings .............................................................. 30
Installing Front Low-Speed Bearings .............................................................. 30
Installing Balance Piston & Diffuser Plate ...................................................... 31
Installing The Impeller ..................................................................................... 31
Disassembly Of Rotor Scroll ........................................................................... 32
Removing The Nozzle Base Plate .................................................................... 32
Removing The Impeller Eye Seal .................................................................... 33
Re-Assembly Of Eye Seal ............................................................................... 34
Re-Assembly Of Nozzle Base Plate ................................................................. 34
Re-Assembly Of Scroll Housing To Rotor Support ........................................ 34
Removing The Pre-Rotation Vane Housing ..................................................... 35
Replacing Control Shaft Assembly .................................................................. 37
SECTION
Oil Pump .......................................................................................................... 38
Removing Oil Pump From Oil Sump .............................................................. 38
Disassembling The Oil Pump .......................................................................... 39
Re-Assembly Of Oil Pump .............................................................................. 39
Re-Assembly Of Oil Pump Into Oil Sump ...................................................... 42
4

TABLE OF CONTENTS

1 GENERAL
2 COMPRESSOR SERVICE
3 OIL PUMP SERVICE
REFERENCE LITERATURE
Installation - Unit
Operation - Unit
Renewal Parts - Unit
Renewal Parts - Compressor
Coupling Assembly
160.49-N1
160.49-O1
160.49-RP1
160.49-RP2
160.49-N4
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